Portal:South Africa/Did you know/6

== Source ==
 * ...that The deepest mine is a gold mine in South Africa. in 1977 the Western Deep Levels Mine reached a depth of 11,749 feet. Most mines descend to about 3,300 feet.
 * ...that South Africa is the only country in the world to voluntarily abandon its nuclear weapons program.
 * ...that South Africa has 19,004 miles of railway track - 80% of Africa's rail infrastructure.
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